發(fā)布時間：2018-11-15 13:43

【摘要】：本文對湛江灣灣內(nèi)、灣口和灣外柱狀沉積物n-alkanes和PAHs的空間分布、成分譜特征和排放源進(jìn)行調(diào)查分析。結(jié)果表明:(1)n-alkanes和PAHs的空間分布一致,濃度水平由高到低依次為:灣內(nèi)、灣口、灣外,垂直變化不明顯;(2)n-alkanes和PAHs的成分譜和L/H、CPI、Ant/(Ant+Phe)、Flu/(Flu+Pyr)、BaA/(BaA+Chry)、IP/(IP+BghiP)等特征參數(shù)比值以及主成分分析結(jié)果表明C25~C35高碳數(shù)n-alkanes的高等植物貢獻(xiàn)具有絕對優(yōu)勢,C14~C24中低碳數(shù)的n-alkanes和PAHs則有共同的石油、化石燃料燃燒和生物質(zhì)燃燒等人為源;(3)C14~C24中低碳n-alkanes與PAHs的源解析結(jié)果相同,其線性相關(guān)系數(shù)在0.67以上,表明兩者具有較好的相關(guān)性,但兩者之間的定量關(guān)系還需進(jìn)一步的研究。本研究表明n-alkanes和PAHs對人為源的指示具有一致性,兩者具有良好的相關(guān)性,能夠較好地反映城市的社會經(jīng)濟(jì)狀況,在進(jìn)一步的研究中可以建立兩者之間的定量關(guān)系并形成新的參數(shù),提高人為源解析結(jié)果的準(zhǔn)確性,深入反映人類活動對海洋環(huán)境的影響。
[Abstract]:In this paper, the spatial distribution, composition spectrum characteristics and discharge sources of n-alkanes and PAHs in and out of the Bay of Zhanjiang Bay were investigated and analyzed. The results showed that: (1) the spatial distribution of n-alkanes and PAHs was the same, and the concentration level was in turn from high to low: the vertical change was not obvious in the bay, the mouth of the bay, the outside of the bay; (2) the composition spectra of n-alkanes and PAHs and the L / H / (Ant Phe), Flu/ (Flu Pyr), BaA/ (BaA Chry), The ratio of characteristic parameters such as IP/ (IP BghiP) and principal component analysis showed that the higher plant contribution of C25~C35 with high carbon number n-alkanes had an absolute advantage, while that of C14~C24 with low carbon number n-alkanes and PAHs had the same oil. Fossil fuel combustion and biomass combustion; (3) the results of source analysis of low carbon n-alkanes and PAHs in C14~C24 are the same, and the linear correlation coefficient is more than 0.67, which indicates that there is a good correlation between them, but the quantitative relationship between them needs further study. This study shows that n-alkanes and PAHs are consistent in indicating anthropogenic sources, and they have a good correlation, which can better reflect the social and economic situation of cities. In the further study, the quantitative relationship between the two can be established and new parameters can be formed, which can improve the accuracy of the analytical results of human resources and reflect the impact of human activities on the marine environment.
【作者單位】： 廣東海洋大學(xué)海洋資源與環(huán)境監(jiān)測中心;廣東省海洋發(fā)展規(guī)劃研究中心;
【基金】：海洋公益性行業(yè)科研專項經(jīng)費(fèi)項目(201505027-1)
【分類號】：X55;P736.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王超;張霖琳;刀，

本文編號：2333467